r=rickg. replacing a char const w/ an int literal

netwerk/protocol/http/src/nsHTTPHeaderArray.cpp

@@ -132,7 +132,7 @@ nsresult nsHTTPHeaderArray::SetHeader(nsIAtom* aHeader,
         // we can't use the standard comma because there
         // set-cookie headers that include commas in the cookie value
         // contrary to the specs not allowing it.
-        entry->mValue.Append('\n');
+        entry->mValue.Append(CR);
         entry->mValue.Append(aValue);
     } else {
         // delimit each value from the others using a comma (HTTP spec delimiter)